/*
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package io.trino.plugin.hive.util;

import com.google.common.base.Splitter;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

import static com.google.common.base.Strings.isNullOrEmpty;

// based on from org.apache.hadoop.hive.common.ValidTxnWriteIdList
public final class ValidTxnWriteIdList
{
    private static final Splitter TABLE_SPLITTER = Splitter.on('$');

    private final Map<String, ValidWriteIdList> tables = new HashMap<>();

    public ValidTxnWriteIdList(String value)
    {
        if (isNullOrEmpty(value)) {
            return;
        }

        List<String> values = TABLE_SPLITTER.splitToList(value);
        for (String table : values.subList(1, values.size())) {
            ValidWriteIdList list = new ValidWriteIdList(table);
            tables.put(list.getTableName(), list);
        }
    }

    public ValidWriteIdList getTableValidWriteIdList(String fullTableName)
    {
        return tables.get(fullTableName);
    }
}
